adjective
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having succeeded in one's endeavours
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marked by a favourable outcome
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having obtained fame, wealth, etc
Usage
Spelling tips for successful The word successful is hard to spell because it can be hard to know which letters are doubled. Both the c and the middle s are doubled, but the f and l are not. How to spell successful: To be a success, you need to see (two Cs) Some Smarts (two Ss). This reminds you that success is spelled with a double C in the middle and a double S at the end. To spell successful, you add the base word (success) to the suffix -ful.
Other Word Forms
- half-successful adjective
- half-successfully adverb
- half-successfulness noun
- nonsuccessful adjective
- nonsuccessfully adverb
- presuccessful adjective
- presuccessfully adverb
- quasi-successful adjective
- quasi-successfully adverb
- semisuccessful adjective
- semisuccessfully adverb
- successfully adverb
- successfulness noun
Etymology
Origin of successful
Explanation
If you win or do well, at whatever it is you do, you are successful. Successful people usually get more money, attention, and praise. If you go into business and make a lot of money, you're successful. If you play tennis and finish the season with more wins than losses, you've been successful. If you have a successful pregnancy, you give birth to a healthy baby. Successful is one of those words that covers a great deal of ground; it generally applies to anything, anyone or any venture that ends well. When you see the word successful, think "Winning!"
Vocabulary lists containing successful
Power Suffix: -ful
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Talk Like Shakespeare Day, List 5
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"A Raisin in the Sun," "My Father is a Simple Man," and "My Mother Pieced Quilts"
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“If successful, X Money could turn social engagement into native transaction flow, expanding the addressable user opportunity meaningfully over time.”
From MarketWatch • Apr. 16, 2026
The real-estate lobby had been successful in quashing previous efforts to tax second homes, including in 2014 and 2019.
From The Wall Street Journal • Apr. 16, 2026
The 1987 Montreal Protocol is often described as the most successful environmental treaty ever created.
From Science Daily • Apr. 16, 2026
To the extent we are successful, our engagement could have the byproduct of creating upside.
From Barron's • Apr. 16, 2026
He was a successful private investigator who’d solved lots of tough cases.
From "A Monster of a Mystery (The Hardy Boys: Secret Files, #5)" by Franklin W. Dixon
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
